iOS 6.1 has been the root of several different problems since its launch in late January. Users reported that they had decreased battery life after updating, which is a common complaint when a new iOS iteration is put out. Then there were reported of intermittent 3G signal issues, which were later confirmed by multiple mobile service providers in Europe.

Apple has already pushed out iOS 6.1.1 exclusively for iPhone 4S, which is the model most affected by the 3G signal issues.